views.py

from django.shortcuts import render
from django.template import Template, RequestContext
from django.http import HttpResponse

def view(request):
    
    nds = {
        u'outer1': ('mid1a', 'mid1b'),
        u'outer2': ('mid2a', ),
    }
    
    ts = u"""<pre>
    nds={{ nds }}.
    {% for outerk, outerv in nds.items %}
      outerk={{ outerk }} outerv={{ outerv }}
      {% for mid in outerv %}
        mid={{ mid }}
      {% endfor %}
    {% endfor %}
    </pre>
    """
    
    nds = {
        u'outer1': ('mid1a', 'mid1b'),
        u'outer2': ('mid2a', ),
    }
    
    t = Template(ts)

    d = {'nds': nds}

    c = RequestContext(request, d)
    
    s = t.render(c)
    
    print "s=", s
    
    return HttpResponse(s)